I'd like to thank my linter for that tip

src/baudot.rs

@@ -178,7 +178,7 @@ impl<'a> Iterator for Decoder<'a> {
     }
 }
 
-pub fn decode(msg: &Vec<u8>) -> Result<String, u8> {
+pub fn decode(msg: &[u8]) -> Result<String, u8> {
     let decoder = Decoder::from(msg.iter().copied());
     match decoder.collect() {
         Ok(v) => Ok(String::from_utf8(v).unwrap()),